<template>

  <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区-->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <!--搜索与添加区域-->
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
              <el-button slot="append " icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>

        </el-col>
        <el-col :span="4"><el-button type="primary" @click="addDialogVisible=true">添加用户</el-button></el-col>
      </el-row>

      <!--用户列表区域-->
      <el-table :data="userList" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名" width="180"></el-table-column>
        <el-table-column prop="email" label="邮箱" width="180"></el-table-column>
        <el-table-column prop="mobile" label="电话" width="180"></el-table-column>
        <el-table-column prop="role_name" label="角色" width="180"></el-table-column>
        <el-table-column prop="mg_state" label="状态" width="180">
          <!--v-slot="scope"也是可以的.作用是遍历循环当前每一项-->
          <template slot-scope="scopeName1">
            <!--scope.row就是当前的数据,-->
            <!--{{scopeName1.row}}-->
            <!--不能直接监听scopeName1.row.mg_state，因为mg_state是布尔值-->
            <el-switch
              v-model="scopeName1.row.mg_state" @change="userStateChanged(scopeName1.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column  label="操作" width="180">
          <template slot-scope="scope">
            <!--修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!--删除按钮-->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!--分配角色按钮-->
            <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false" >
              <el-button type="warning" icon="el-icon-s-tools" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--分页列表-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!--添加用户-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%" @close="addDialogClosed">
      <el-form :model="addForm" status-icon :rules="addFormRules" ref="ruleForm" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username" ></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" ></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email" ></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile" ></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary"  @click="addUser">确 定</el-button>
  </span>
    </el-dialog>
    <!--修改用户的对话框-->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" >
        <el-form-item label="用户名" prop="name" disabled>
          <el-input v-model="editForm.username"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email" >
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile" >
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>

    <!--分配角色对话框-->
    <el-dialog title="提示" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClose">
      <div>
        <p>当前的用户：{{userInfo.username }}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option
            v-for="item in rolesList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id">
          </el-option>
        </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>

  </div>

</template>

<script>
    export default {
        name: "User",
      data(){
          //自定义手机和邮箱校验规则
        var checkEmail = (rule,value,cb)=>{
          const regEmail = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)/

          if (regEmail.test(value)){
            return cb()
          }
          cb(new Error('请输入合法邮箱'))
        }
        var checkMobile=(rule,value,cb)=>{
        const resMobile= /^((13[0-9])|(14[5|7])|(15([0-3]|[5-9]))|(18[0,5-9]))\d{8}$/
          if(resMobile.test(value)){
            return cb()
          }
          cb(new Error('手机不合法'))
        }
          return {
            //获取用户列表要在data里面写，把所有参数合并成一个数组， 重要
            queryInfo:{
              query:'',
              //当前页数
              pagenum:1,
              //几条/页
              pagesize:2
            },
            userList:[],
            total:0,
            //控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            //添加用户的表单数据
            addForm:{
              username:'',
              password:'',
              email:'',
              mobile:''
            },
            //添加表单的验证规则对象
            addFormRules:{
              username:[
                {required:true,message:"请输入用户名",trigger:'blur'},
                {min:3,max:10,message:"用户名3-10",trigger:'blur'}
              ],
              password:[
                {required:true,message:"请输入密码",trigger:'blur'},
                {min:6,max:15,message:"用户名3-10",trigger:'blur'}
              ],
              email:[
                {required:true,message:"请输入邮箱",trigger:'blur'},
                {validator:checkEmail,trigger:'blur'}
              ],
              mobile:[
                {required:true,message:"请输入手机号",trigger:'blur'},
                {validator:checkMobile,trigger:'blur'}
              ]
            },
            //控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            //查询到的用户信息对象
            editForm:{ },
            //修改表单的验证规则对象
            editFormRules:{
             email:[
               {
                 required:true,message:'请输入用户邮箱',trigger:"blur"
               },
               {validator:checkEmail,trigger:'blur'}
             ],
              mobile:[
                {
                  required:true,message:'请输入用户手机',trigger:"blur"
                },
                {validator:checkMobile,trigger:'blur'}
              ]
            },
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userInfo:{},
            //用于接收所有用户角色的列表
            rolesList:[],
            //已选中的角色ID
            selectedRoleId:''
          }
      },
      created() {
          this.getUserList()
      },
      methods:{
       async getUserList(){
         const {data:res} = await this.axios.get('users',{params:this.queryInfo})
         console.log(res.data.users);
         if(res.meta.status !==200){return this.$memege.error('获取列表失败')}
         this.userList = res.data.users
         this.total = res.data.total

       },
        //监听pageSize改变的事件
        handleSizeChange(newSize){
          //console.log(newSize);
          this.queryInfo.pagesize = newSize
          this.getUserList()
        },
        //监听页码值改变的事件
        handleCurrentChange(newPage){
          //console.log(newPage);
          this.queryInfo.pagenum = newPage
          this.getUserList()
        },
        async userStateChanged(userinfo){
          console.log(userinfo);
          const {data:res} = await this.axios.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
          if (res.meta.status !== 200){
            userinfo.mg_state =! userinfo.mg_state
            return this.$memege.error('更新用户状态失败')
          }
          this.$memege.success('更新状态成功')
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed(){
         this.$refs.ruleForm.resetFields()
        },
        //点击按钮，添加新用户
        addUser(){
          this.$refs.ruleForm.validate( async valid=>{
            if (!valid) return
            //校验通过，发起添加用户网络请求
            const {data:res}=await this.axios.post('users',this.addForm)
            
            if (res.meta.status!==201) {
              this.$memege.error('添加用户失败')
            }
            console.log(res)
            this.$memege.success('添加用户成功')
            //隐藏添加的对话框
            this.addDialogVisible = false
            //重新获取用户列表
            this.getUserList()
          })
        },
       async showEditDialog(id){
         this.editDialogVisible = true

         const {data:res}= await this.axios.get('users/'+ id)
         if(res.meta.status !== 200){
           return this.$memege.error('查询用户信息失败！')
         }
         console.log(res);
         this.editForm = res.data
        },
        //修改用户信息并提交
        editUserInfo(){
         this.$refs.editFormRef.validate(async valid=>{
           console.log(valid);
           if(!valid) return
           //发起修改数据请求
           const {data:res}= await this.axios.put('users/'+this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
           if(res.meta.status!==200){
             return this.$memege.error('更新用户信息失败！')
           }
           //关闭对话框
           this.editDialogVisible = false
           //刷新数据列表
           this.getUserList()
           //提示修改成功
           this.$memege.success('更新用户信息成功！')
         })
        },
        //根据id删除对应的用户信息
       async removeUserById(id){
          //弹框询问用户是否删除数据
         const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }).catch(
             err=>err //是 return err的简写
          );
         //如果用户确定，则返回字符串 confirm
         //如果用户取消，则返回字符串 cancel
         //console.log(confirmResult);
         if(confirmResult !== 'confirm'){
           return this.$memege.info('已取消删除')
         }
       const {data:res} = await this.axios.delete('users/'+id)
         if(res.meta.status !==200){
           return this.$memege.error('删除用户失败！')
         }
         this.$memege.success('删除用户成功！')
         this.getUserList()
         console.log(res);
       },
        //展示分配角色的对话框
        async setRole(userInfo){
         this.userInfo = userInfo
          //在展示对话框前获取所有用户列表，用于下拉选择框
         const {data:res} =  await this.axios.get("roles")
          if (res.meta.status !== 200){
            return this.$memege.error('获取角色列表失败！')
          }
          this.rolesList = res.data
         this.setRoleDialogVisible = true
          console.log(this.userInfo);
        },
        //点击按钮分配角色
       async saveRoleInfo(){
         if (!this.selectedRoleId) {
           return this.$memege.error('请选择分配角色')
         }
         const{data:res}= await  this.axios.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})

         if (res.meta.status !== 200){
           return this.$memege.error('更新用户失败')
         }
         this.$memege.success('更新用户成功')
         this.getUserList()
         this.setRoleDialogVisible = false
        },
        //关闭对话框，重置选择框
        setRoleDialogClose(){
           this.selectedRoleId = ''
          this.userInfo = { }
        }
      }
    }
</script>

<style scoped>
.el-table{margin-top: 15px;font-size: 12px}
  .el-pagination{margin-top: 14px}
</style>
